| 深埋软岩巷道增强混凝土应用 |
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| 引用本文： | 王其胜,姚华.深埋软岩巷道增强混凝土应用[J].采矿与安全工程学报,2008,25(2):184-187. |
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| 作者姓名： | 王其胜 姚华 |
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| 作者单位： | 1. 河南理工大学能源学院,河南,焦作,454000;中南大学资源与安全工程学院,湖南,长沙,410083
2. 贵州开磷集团矿业总公司,贵州,贵阳,532000 |
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| 基金项目： | 国家自然科学基金莺大项目 |
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| 摘 要： | 根据不同体积率的钢纤维混凝土力学性能的试验结果,分析了钢纤维混凝土能适应围岩大变形的阻裂、增强、增韧机理,结果表明,钢纤维与混凝土基体间的黏结强度是影响钢纤维混凝土增强效果的主要因素,并提出了加大钢纤维与混凝土基体黏结强度的几种措施.借助数值计算,提出了深埋软岩巷道钢纤维混凝土锚喷支护技术方案.工业试验结果表明,与原支护设计相比,新支护方案更能有效地控制巷道围岩变形,现场应用取得了良好的技术经济效益.
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| 关 键 词： | 钢纤维混凝土 增强机理 软岩巷道 支护 |
Application of Reinforced Concrete in Soft Rock Tunnel at Great Depth |
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| WANG Qi-sheng,YAO Hua.Application of Reinforced Concrete in Soft Rock Tunnel at Great Depth[J].Journal of Mining and Safety Engineering,2008,25(2):184-187. |
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| Authors: | WANG Qi-sheng YAO Hua |
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| Affiliation: | 1.School of Energy Science and Engineering;Henan Polytechnic University;Jiaozuo;Henan 454000;China;2.School of Resources and Safety Engineering;Central South University;Changsha;Hunan 410083;3.Guizhou Kaiyang Phosphor Mine Group Co.;Guiyang;Guizhou 532000;China |
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| Abstract: | Based on the experimental results of mechanical property of steel fiber reinforced concrete with different volume ratios,the reinforcement mechanism such as resistant crack,reinforcement and toughening mechanism of steel fiber reinforced concrete suitable for large deformation of surrounding rock were analyzed.The results show that the bonding strength between steel fiber and matrix of concrete is the main factor affecting the reinforcement of steel fiber reinforced concrete and several kinds of measures ar... |
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| Keywords: | steel fiber reinforced concrete reinforcement mechanism soft rock tunnel support |
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